Anti-Spam SMTP Proxy Server


  • Multiple Weighted DNSBLs
  • Multiple Weighted URIBLs
  • Greylisting
  • Weighted Regular Expression Filtering
  • Bayesian
  • Penalty Box
  • SenderBase
  • Attachment Blocking
  • ClamAV and FileScan
  • Blocking Reporting
  • LDAP support
  • Backscatter Detection
  • V2 – recipient replacement / GUI user access rights management
  • V2 – MIME charset conversion / DKIM check and signing
  • V2 – DB support for all hashes / level based open plugin support
  • V2 – transparent proxy support / BATV check and signing
  • V2 – Plugins: archive, full attachment check and replacement, OCR
  • V2 – damping (steal spammers time)
  • V2 – AUTH to relay host / POP3 collector
  • V2 – configuration value and file synchronization
  • V2 – Block Reports design could be customized
  • V2 – Razor2 and DCC support via Plugin
  • V2 – SNMP support (monitoring, configuring, controll-API)
  • V2 – user group import (file or LDAP or command based)
  • V2 – automatic crash analyzer Hidden Markov Model
  • V2 – IPv6 socket support
  • V2 – word stemming (several languages) for Bayesian analyzer
  • V2 – Perl module autoupdate via PPM or CPAN
  • V2 – Hidden Markov Model spam detection engine
  • V2 – full unicode support
  • V2 – DMARC support
  • V2 – privat Whitelist (legacy, domain based, user based)
  • V2 – privat IP and Domain lists (legacy, domain based, user based)
  • V2 – CPU affinity settings


The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click ‘Browse all files’ to download the professional version 2.3.3 build 13217.

Note to V2 users build 12265 and less: don’t upgrade the module Thread::Queue to version 3.01 – this will cause ASSP to die -> revert to version 2.11/2.12 of Thread::Queue

GUI->Server Setup->AutoUpdateASSP->”never upgrade these modules” or put ‘Thread::Queue’ in to the file ‘files/noupgrade.txt’

2.2.1 build 12313 and higher fixes this problem

V2 users should check the version of ‘Regex::Optimizer’ and ‘Regex::List’ in the ‘lib’ folder – please upgrade these modules to version
Regex::Optimizer – 1.12
Regex::List – 1.06
available in the files section of this page

Estimated Worth For this Product appraised at 399.00
Your Cost: $Free$


The Coders/Programers of this product worked really hard for endless hours
to bring this Amazing product to the General Public for absolutely NO COST.

As a show of Patronage and appreciation we ask that you help us to continue to make these types of projects possible by filling one of our quick and easy Sponsor Forms it wont take but a few seconds.
A portion of the proceeds will be donated so congratulations this is your Good deed for the day

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This file has been downloaded 2,147 times Today Saturday October 2017


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  • TomM 1 hour ago Saturday October 2017

    Thanks and 100% works. I will share it with my friends

  • Terminator! 1 hour ago Saturday October 2017

    Good thing I found this site. Thank you

  • tinkerbell 2 hours ago Saturday October 2017
    Well executed but I cannot move to next level. Works perfect for me
  • Vince 4 hours ago Saturday October 2017
    I ve been looking for this for a long time. Very Good.
  • dansw4 5 hours ago Saturday October 2017
    Cool!!!!!!!!!!!!!!! I will buy you a bottle of beer for this.
  • Joe Schmo Friday October 2017
    Damn great software!!!!!!!
  • Deb Friday October 2017
    Good thing this is free! thanks anyway
  • Grumpppy Friday October 2017
    What you see is what you get. I thought this is fake. Lolz
  • LJM Friday October 2017
    This is epic! Cool
  • joanna Friday October 2017
    Thanks. Works fine!


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